航海英語搜索用語單項選擇題每日一練(2019.01.12)

來源：考試資料網(wǎng)

1 All the traces are（）old ones.

2 One of the signals，other than a distress signal，that can be used by a vessel to attract attention is a(n)（）.

3 Course directed by the OSC or CSS to be steered at the beginning of a search is（）.

4 A man was sighted as he fell overboard. After completing a Williamson turn，the man is not sighted. What type of search should be conducted?（）

5 A VESSEL，OTHER THAN A RESCUE UNIT，DESIGNATED TO CO-ORDINATE SURFACE SEARCH AND RESCUE OPERATION WITHIN A SPECIFIED AREA is known as（）.